Effect of original packing on compression stress at the bottom of propellant bed

Wang Yan; Rui Xiao-ting; Song Zhen-dong; Li Chao; Jiang Shi-ping; Feng Bin-bin; Wang Guo-ping

doi:10.11883/1001-1455(2014)05-0560-07

Volume 34 Issue 5

Dec. 2014

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2014 > 34(5): 560-566

Wang Yan, Rui Xiao-ting, Song Zhen-dong, Li Chao, Jiang Shi-ping, Feng Bin-bin, Wang Guo-ping. Effect of original packing on compression stress at the bottom of propellant bed[J]. Explosion And Shock Waves, 2014, 34(5): 560-566. doi: 10.11883/1001-1455(2014)05-0560-07

Citation:

Wang Yan, Rui Xiao-ting, Song Zhen-dong, Li Chao, Jiang Shi-ping, Feng Bin-bin, Wang Guo-ping. Effect of original packing on compression stress at the bottom of propellant bed[J]. Explosion And Shock Waves, 2014, 34(5): 560-566. doi: 10.11883/1001-1455(2014)05-0560-07

Citation:

Wang Yan, Rui Xiao-ting, Song Zhen-dong, Li Chao, Jiang Shi-ping, Feng Bin-bin, Wang Guo-ping. Effect of original packing on compression stress at the bottom of propellant bed[J]. Explosion And Shock Waves, 2014, 34(5): 560-566. doi: 10.11883/1001-1455(2014)05-0560-07

PDF( 2322 KB)

Effect of original packing on compression stress at the bottom of propellant bed

doi: 10.11883/1001-1455(2014)05-0560-07

1.
Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Bureau of Ordnance, General Equipment Support Department of General Equipment Headquaters, Beijing 100720, China

Received Date: 2013-04-01
Rev Recd Date: 2013-05-27
Publish Date: 2014-09-25

Abstract

Abstract

To provide the key data for evaluating the launch safety of propellant charge, dynamic compression fracture experiments were carried out for the propellant charges with different original packing modes.And the corresponding compression stresses at the bottoms of the propellant beds were obtained under the same loadings.By using the discrete element method, a dynamics model was proposed to simulate the compression fracture of the propellant charges.And the simulated compression stresses were in agreement with the experimental ones.The random packing mode did not obviously affect the compression stresses at the bottoms of the propellant beds, but when the propellants were packed in the plumb mode, the compression stresses at the bottoms of the propellant beds were markedly different.
- mechanics of explosion,
- compression stress,
- dynamics compression,
- propellant bed,
- original packing

FullText(HTML)

References(10)

References

[1]	芮筱亭, 贠来峰, 王国平, 等.弹药发射安全性导论[M].北京: 国防工业出版社, 2009.
[2]	Horst A W, May I W, Clarke E V. The missing link between pressure waves and breechblows[R]. AD-A058 354/2GA, 1978.
[3]	Keller G E, Horst A W. Effects of propellant grain fracture on the interior ballistic of guns[R]. AD-A209 007/4/GAR, 1989.
[4]	陈涛, 芮筱亭, 凌剑, 等.发射药床动态挤压破碎模拟研究[J].南京理工大学学报, 2006, 30(4): 467-471. http://d.wanfangdata.com.cn/Periodical/njlgdxxb200604017 Chen Tao, Rui Xiao-ting, Ling Jian, et al. Dynamic extrusion and fracture simulation of propellant charge bed[J]. Journal of Nanjing University of Science and Technology, 2006, 30(4): 467-471. http://d.wanfangdata.com.cn/Periodical/njlgdxxb200604017
[5]	姜世平.散体系统破碎动力学研究[D].南京理工大学, 2011.
[6]	Jiang Shi-ping, Rui Xiao-ting, Hong Jun, et al. Numerical simulation of impact breakage of gun propellant charge[J]. Granular Matter, 2011, 13(5): 611-622. doi: 10.1007/s10035-011-0276-1
[7]	姜世平, 芮筱亭, 洪俊, 等.发射药床自然堆积模拟[J].弹道学报, 2011, 23(2): 82-86. http://d.wanfangdata.com.cn/Periodical/ddxb201102019 Jiang Shi-ping, Rui Xiao-ting, Hong Jun, et al. Simulation on packing structure of propellant bed[J]. Journal of Ballistics, 2011, 23(2): 82-86. http://d.wanfangdata.com.cn/Periodical/ddxb201102019
[8]	Mishra B K, Murty C V R. On the determination of contact parameters for realistic DEM simulation of ball mills[J]. Powder Technology, 2001, 115(3): 290-297. http://www.sciencedirect.com/science/article/pii/S0032591000003478
[9]	Emden H K, Wirtz S, Scherer V. Applicable contact model for the discrete element method: The single particle perspective[J]. Journal of Pressure Vessel Technology, 2008, 131(2): 024001. http://www.researchgate.net/publication/245365178_Applicable_Contact_Force_Models_for_the_Discrete_Element_Method_The_Single_Particle_Perspective
[10]	目黑公郎, 博野元彦.用粒状体模拟混凝土结构的破坏分析[J].东京大学地质研究所汇报, 1991, 63(4): 409-468. Mekuro K, Hakano T. Fracture analysis of concrete structures by granule simulation[J]. Research Report of Geology Institute of Tokyo University, 1991, 4(63): 409-468.